Scope of use: Respiratory protection, used for coal dust, cement dust, casting dust, ceramic dust, etc. Particulate matter, anti fog  Haze, dust prevention, construction industry, chemical industry, shipbuilding, electronics, free travel, etc Features:  Suitable for 6200 7502 6502 6800 particulate dust mask  It can filter various non oily particles, but is not suitable for filtering radiation and highly toxic particles.  Made of 6 layers of Microfiber, it effectively keeps you away from dust and particles.  Effectively, providing you with a better work environment.  Helps provide respiratory protection  specifications  Product Name: 5N11 Filter Cotton Particle Filter Cotton  Product model: 5N11  Product type: Filter cotton  Product material: non-woven fabric .